Improvement in eyeleting-machines



c. E, SAWYER. EYELETING MACHINE.

No.181,540. Patented Aug.2 9',18'7 6.

N. PETERS, PHOTO-UTNDGRAFHER. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

CHARLES E. SAWYER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN EYELETlNG-MACHINES.

Specification forming part of Letters Patent No. I 8 1,540, dated August 29, 1876 application filed July 26, 1875.

.To all whom it may concern:

Be it known that I, CHAS. SAWYER, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful lmprovementsin Eyeleting-Machines,

I of which the following is a specification:

The object of my invention is to increase the speed and working capacity of the maondly, in the construction of a rotative feedcylin'der, provided with flexible or elasticrubber fingers, secured around its lower edge at intervals, and projecting downward from the same, and operating within the eyelet-box at the bottom of present eyelets to be received into the opening through the side of the same connecting with the chute or race; thirdly, in the con-- struction of an adjustable movable guard, connected at the upper end of the chute or race, so as to prevent the escape of perfect eyelets when the machine is running, yet allow of such guard being swung or pushed from the opening at the top of the chutev or race when it becomes clogged by imperfect eyelets entering the same, and allow of their removal without stopping the machine; fourthly, in the construction of a frictiondisk, placed within the hopper above the eyelet-box, adjusted and operated with a spiral torsion-spring connected to the said disk, and an adjustable bearing, and surrounding a vertical driving-shaft, so as to be coiled and recoil by the friction-disk on the top of the rotative feeder, so as to inipart more or less of an oscillating motion to the same as it rotates.

Figure 1 is a side elevation ofa hopper, chute, and box of an eyeleting-machine constructed according to my invention. Fig. 2 is a vertical section through the same. Fig. 3 is a section view of the rotative feeder removed, as constructed with the rubber fingers.

A is the chute or race, of usual construction at its upper end, near the eyelet-box. B is an arm, to which is pivoted a guard, (3,

the same, so as to continually which may be swung around, or turned out from, the eyelet-box B, to which it closely fits at or over the aperture in the same, where it connects with the chute or race A, so as to allow free, access at this point, to remove im perfect eyelets which clog the chute or race. When such have been removed a suitable spring returns the guard to its former position. This guard 0 is adjustable, so as to suit the different length of eyelets being used, and it may be slid or moved in any desired manner, to allow access in removing eyelets with a piece of wire or otherwise.

D is a rotative cylindric feeder, connected by a cross-bar, T, on its top to the upright driving-shaft E, said shaft being journaled in the bottom of the eyelet-box B, and having a bearing, P, at its top, so as to insure the true rotation of the rotative feed-cylinder D, as

such is very essential to the perfect working of the machine when run at a high rate of speed. I

F F F are flexible rubber fingers or stirrers,

inserted at intervals in the lower edge of the rotative feed-cylinder D, which keep the eyev lets. in constant motion, pushing outat the aperture those that are right side up, and removing the others, so as to keep up a continuous supply in the race or chute A when the machine is running at a much higher rate of speed than those heretofore constructed now in use. These flexible rubber fingers F I find, after many experiments, are very peculiarly adapted for the purpose of feeding the eyelets to the chute or race rapidly, on account of their elastic or flexible nature. When made of pure soft vulcanized rubber, their size may be snfficient to prevent more than a single eyelet from slipping upon any one of them at a time; whereas, if bristles were employed, as

heretofore, a large number would slip upon the bristles, so as to entirely clog up the same and necessitate their removal, which would require the stopping of the machine.

In order to impart thedesired oscillating or rotative motion to the feed-cylinder D, a friction-disk, G, is connected by a spiral torsionspring, H, coiled around the upright drivingshaft E, and connected with its top bearing P.

This disk G is located above the eyelet-box B.

and rotative feed-cylinder D, and Within the elongated hopper K, so as to .be free of the oil used on the journal-bearing of the shaft E in the bottom of the eyelet-box B, which is liable to run down upon and destroy the friction when located below the bottom of the eyelet--- box, as heretofore, the spiral coiled spring H being coiled or Wound up on the shaft E by the action of the feed-cylinder upon the friction-disk as it is revolved by the pawl and ratchet, and recoils when the pawlslides back over the ratchet, the friction thus giving the degree of oscillation desired in the feed-cylinder D. i

Pis an adjustable bearing, which serves also to adjust the amount of friction on the rotative feed-cylinder D, by screwing this ad justable bearing P up or down, so as to depress or elongate the spiral coiled spring H, causing it to hear more or less upon the friction-disk Gr, thereby regulating the friction at will. This spiral coiled spring H has one end connected to the friction-disk G, and the other end to the adjustable bearing P, which bear ing also serves to keep the upper end of the shaft Ein true position. The elongated hopper K is supported at an angle by short posts L, which have clamps N, as shown, to secure it in position. If desired, this hopper K may connect with, or be an extension of the eyeletbox B upward, so as to surround and inclose the rotath'e ieed-cylinderD; or the rotative feed-cylinder D may be extended upward sufficient to form the hopper K, being supported by standards with a cross-bar above the top of the same to receive the adjustable bearing, as before, and thusaccomplisli the same results. By means of this elongated hopper K, a large amount-of running time is saved in supplying the machine with eyelets, as the compared with any'first-class machine in use.

Having thus described my invention, what I claim is' i 1. In combination with the chute or race A of an eyeletin'g-machine, the adj ustablemovable guard O, constructed substantially in the manner described, as and for the purposes set forth. 1

2. In combination with thechute or race A .of an eycleting-machine, the rotative feed-cylinder D, as constructed with the flexible rubber fingers F, as and for the purposes set forth.

3. The combination of a rotary'feed-cylinder, D, and fIiGillOll-dlSkGr with a hopper, K, all substantially as and for the purposes set forth.

4:. The frictional device .consistingof the disk G, spiral torsion-spring H, and adjustable bearing P, in combination with the vertical shaft E and rotative feed-cylinder D, all, being arranged substantially as and for the purposes set forth.

CHAS. E. SAWYER.

Witnesses:

SYLvENns WALKER, H. S. TALBOT. 

